21383650

素因数分解:

$2^1\times 5^2\times {\mathrm{97}}^1\times {\mathrm{4409}}^1$

素因数の和:4518

約数の個数: 24

約数和(自身を含む): 40192740

約数和(自身を除く): 18809090

約数列:

[1, 2, 5, 10, 25, 50, 97, 194, 485, 970, 2425, 4409, 4850, 8818, 22045, 44090, 110225, 220450, 427673, 855346, 2138365, 4276730, 10691825, 21383650]

約数ペア:

[(1, 21383650), (2, 10691825), (5, 4276730), (10, 2138365), (25, 855346), (50, 427673), (97, 220450), (194, 110225), (485, 44090), (970, 22045), (2425, 8818), (4409, 4850)]